Home / 8,455.91-11,670.60-4,921.17

Finding the Fourth Proportional to 8,455.91, 11,670.60 and 4,921.17

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Solution

The fourth proportional to 8,455.91, 11,670.60 and 4,921.17 is: 6,792.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.91 : 11,670.60 = 4,921.17 : x
  2. Step 2: Convert to fraction form
    8,455.91/11,670.60 = 4,921.17/x
  3. Step 3: Cross multiply
    8,455.91x = 11,670.60 × 4,921.17
  4. Step 4: Simplify right side
    8,455.91x = 57,433,006.60
  5. Step 5: Solve for x
    x = 57,433,006.60/8,455.91
  6. Step 6: Final answer
    x = 6,792.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.